﻿//===========================================================================================================================
// Cuberry - http://www.cuberry.net
// Copyright (c) 2012
// by Peacequare® - Amir Moussa
//===========================================================================================================================
// This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
// as published by the Free Software Foundation, either version 3 of the License, or any later version.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
//
// This program is distributed in the hope that it will be useful.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
//
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//===========================================================================================================================


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;

namespace P2.Cuberry.Framework.Helper
{
        public class NullIntToNegOneConverter : IValueConverter
        {
            public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
            {
                if (value == null)
                {

                    return -1;
                }

                else
                {
                    return value;
                }
            }

            public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
            {
                int i;
                if (value == null)
                    return null;
                if (int.TryParse(value.ToString(), out i))
                {
                    if (i == -1)
                    {
                        return null;

                    }
                    else
                    {
                        return value;
                    }
                }
                else
                {
                    return value;
                }
            }
        } 


}
